Analysis

  • max time kernel
    135s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 09:28

General

  • Target

    MV. TBN.exe

  • Size

    17KB

  • MD5

    3c1446661a4699bd8b1e30e50edb5033

  • SHA1

    362c1af3d3f43b4185e017b9a20f1bf73d0c2ab4

  • SHA256

    364d0bdf248f7f0e275ccbf178e50e55cf76b13ec131a0f2156f20526ef24991

  • SHA512

    dc9259264f76d2007d5f8a6c82ed26c3679f1300c541de98a1701fc7d257d8e5a7def10a8dc31e378888ab2f7b3ddad2dd7b33ea7bc3dabe84becf563e593fd7

  • SSDEEP

    384:4GcNoUSIjH32l276Wms8khnn1LRNQPuNn1UjTj9cyI:4GSZT2Wj8SJIPuEjTh8

Malware Config

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 6 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MV. TBN.exe
    "C:\Users\Admin\AppData\Local\Temp\MV. TBN.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1752
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMwAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:912
    • C:\Users\Admin\AppData\Local\Temp\MV. TBN.exe
      "C:\Users\Admin\AppData\Local\Temp\MV. TBN.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1560

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/912-61-0x000000006E9B0000-0x000000006EF5B000-memory.dmp

    Filesize

    5.7MB

  • memory/912-59-0x000000006E9B0000-0x000000006EF5B000-memory.dmp

    Filesize

    5.7MB

  • memory/912-60-0x000000006E9B0000-0x000000006EF5B000-memory.dmp

    Filesize

    5.7MB

  • memory/912-57-0x0000000000000000-mapping.dmp

  • memory/1560-63-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1560-62-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1560-65-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1560-67-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1560-68-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1560-69-0x000000000042075E-mapping.dmp

  • memory/1560-71-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1560-73-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1752-56-0x0000000005B30000-0x0000000005D2A000-memory.dmp

    Filesize

    2.0MB

  • memory/1752-55-0x0000000076261000-0x0000000076263000-memory.dmp

    Filesize

    8KB

  • memory/1752-54-0x00000000011F0000-0x00000000011FA000-memory.dmp

    Filesize

    40KB